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Adjustable LM2596 DC-DC Step-down Converter

2016-01-19 02:04  
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Adjustable LM2596 DC-DC Step-down Converter

 

LM2596LM2596

Item Description:

This is a Non-isolated step-down constant current, constant voltage module (CC CV) charging module with variable output voltage range 1.25-30V when input 7-35V

Output current rated at around 3A and max. up to 4A continuously with good ventilation or heat sink adopt . High efficiency is up to 92%

Application:

High-power LED constant current driver

Lithium battery charger (including ferroelectric)

4V, 6V, 12V, 14V, 24V battery charger, Nickel cadmium, nickel metal hydride batteries charger and

Solar panels and wind turbines.

 

Specifications:

 

Size: ultra-small size 48 (L) * 24 (W) * 11.4 (H) mm (without potentiometer)

Input voltage: 7-35V

Output voltage: continuously adjustable (1.25-30V)

Minimum Voltage difference: 2V

Output current: rated 3A, max up to 4A (more than 15W, please install the heat sink)

Constant current range :0-4A (adjustable)

Output power: natural cooling 15W, 25W with heatsink

Conversion efficiency: up to 92% (output voltage higher, higher the efficiency)

Output ripple: 20M bandwidth (for reference only)

Input 12V Output 5V 3A 60mV (MAX)

Operating temperature: Industrial grade (-40 ℃ to +85 ℃)
(ambient temperature exceeds 40 degrees, lower power use, or add one heatsink)

Full load temperature rise: 45 °C

No-load Current: Typical 10mA (12V switch to 4.2V)

Load regulation: ± 1%

Voltage regulation: ± 0.5%

Dynamic response speed: 5% 200uS

Potentiometer adjustment direction: clockwise (increase), anti-clockwise (decrease)

Indicator: Red LED constant current, the charge in light red, light blue, fully charged

Output short circuit protection: Yes, constant current (constant current value
of the current settings)

Input reverse polarity protection: No, please comply with our plate or in the
input reverse polarity protection diode in series.

Connection mode: welded, plus pin can be directly soldered on the PCB to matching pin, radiator and shell.

LM2596LM2596 LM2596

Typical Application:

 

Using for LED constant current driver:

a)       Make sure operating current and Max operating Voltage of the LED you need to drive.

b)      Adjust the constant voltage potentiometer to make sure the output Voltage is up to LED Max operating Voltage.

c)       Use the multi meter in 10A current scale to measure output short-circuit current and adjust the current potentiometer to make sure the output current to the expected LED operating current.

d)      Connect LED then test again with above sequent (1,2,3,4 steps to connect the power module input and output load does not take LED.)

 

Using for Battery:

a)       Make sure of the voltage and current of the battery you need to charge.

b)      Adjust the constant voltage potentiometer to make the output voltage same to the charge voltage

c)       Use the multi-meter in 10A current scale to measure output short-circuit current, and adjust the current potentiometer to make sure the output current to the expected charging current value.

d)      Charge transfer lamp current default value is 0.1 times of the charging current(constant current value)
For lamp current adjustment, please turn potentiometer adjustment;

e)       Connect battery and trying charge up.
(1,2,3,4 steps to connect the power module input and output load does not take batteries.)

LM2596

 

Package include :

1 xDC-DCConverter module

(Delivery with seated metal pack)

Our products are great for outdoor environment and widely used in automotive, posts and telecommunications, communications, electricity, coal, aerospace, defense, surveillance systems, railway signals, medical equipment, instruments and meters, LED displays, cable TV and other fields.

We have other custom made specification if you can not find a suitable model from our TCH Warehouse Store, please contact our product engineer through eBay email.